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US2934992A
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US
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Assignee: Individual
•
Filing: 1955-04-08
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Granted: 1960-05-03
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Expires: 1975-04-08
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Goldberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:30
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/41; G01N21/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1111093A
Cited
US1571066A
Cited
US2373610A
Cited
US2624014A
Cited
US2601128A
Cited
GB690268A
Cited
US2768553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |